./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0d0975dc4466296431d96c26938a2e71864de63aba998f18ecd8a32ca341796b --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:08:54,661 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:08:54,725 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:08:54,730 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:08:54,730 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:08:54,756 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:08:54,758 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:08:54,758 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:08:54,758 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:08:54,758 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:08:54,759 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:08:54,759 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:08:54,759 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:08:54,760 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:08:54,760 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:08:54,760 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:08:54,760 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:08:54,760 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:08:54,760 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:08:54,760 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:08:54,760 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:08:54,761 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:08:54,761 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:08:54,761 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:08:54,761 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:08:54,761 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:08:54,761 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:08:54,761 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:08:54,761 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:08:54,761 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:08:54,761 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:08:54,762 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:08:54,762 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:08:54,762 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:08:54,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:08:54,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:08:54,762 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:08:54,763 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:08:54,763 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:08:54,763 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:08:54,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:08:54,763 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:08:54,763 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:08:54,763 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:08:54,763 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:08:54,763 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d0975dc4466296431d96c26938a2e71864de63aba998f18ecd8a32ca341796b [2025-02-08 14:08:54,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:08:54,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:08:54,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:08:54,981 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:08:54,982 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:08:54,983 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c [2025-02-08 14:08:56,263 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cf2ca1e39/9fbfd440b9144d7da58dbdc42289c001/FLAG100da9610 [2025-02-08 14:08:56,568 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:08:56,569 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c [2025-02-08 14:08:56,578 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cf2ca1e39/9fbfd440b9144d7da58dbdc42289c001/FLAG100da9610 [2025-02-08 14:08:56,592 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cf2ca1e39/9fbfd440b9144d7da58dbdc42289c001 [2025-02-08 14:08:56,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:08:56,595 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:08:56,596 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:08:56,596 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:08:56,599 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:08:56,600 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:08:56" (1/1) ... [2025-02-08 14:08:56,601 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2857f254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:56, skipping insertion in model container [2025-02-08 14:08:56,601 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:08:56" (1/1) ... [2025-02-08 14:08:56,617 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:08:56,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:08:56,781 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:08:56,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:08:56,838 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:08:56,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:56 WrapperNode [2025-02-08 14:08:56,839 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:08:56,839 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:08:56,839 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:08:56,840 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:08:56,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:56" (1/1) ... [2025-02-08 14:08:56,853 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:56" (1/1) ... [2025-02-08 14:08:56,878 INFO L138 Inliner]: procedures = 25, calls = 62, calls flagged for inlining = 29, calls inlined = 43, statements flattened = 725 [2025-02-08 14:08:56,879 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:08:56,879 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:08:56,879 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:08:56,879 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:08:56,887 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:56" (1/1) ... [2025-02-08 14:08:56,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:56" (1/1) ... [2025-02-08 14:08:56,896 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:56" (1/1) ... [2025-02-08 14:08:56,918 INFO L175 MemorySlicer]: Split 29 memory accesses to 2 slices as follows [27, 2]. 93 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2]. The 3 writes are split as follows [3, 0]. [2025-02-08 14:08:56,919 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:56" (1/1) ... [2025-02-08 14:08:56,919 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:56" (1/1) ... [2025-02-08 14:08:56,935 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:56" (1/1) ... [2025-02-08 14:08:56,939 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:56" (1/1) ... [2025-02-08 14:08:56,941 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:56" (1/1) ... [2025-02-08 14:08:56,946 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:56" (1/1) ... [2025-02-08 14:08:56,954 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:08:56,955 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:08:56,955 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:08:56,955 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:08:56,955 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:56" (1/1) ... [2025-02-08 14:08:56,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:08:56,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:08:56,987 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 14:08:56,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 14:08:57,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:08:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 14:08:57,009 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 14:08:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 14:08:57,009 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 14:08:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 14:08:57,009 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 14:08:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:08:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 14:08:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:08:57,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 14:08:57,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 14:08:57,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:08:57,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:08:57,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 14:08:57,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 14:08:57,011 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 14:08:57,136 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:08:57,139 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:08:57,422 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L69-5: #t~ite23#1 := #t~ret22#1; [2025-02-08 14:08:57,422 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L69-6: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret22#1 && #t~ret22#1 <= 2147483647; [2025-02-08 14:08:57,423 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L69-7: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:08:57,423 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L69-8: havoc minus_#t~short103#1, minus_#t~short104#1, minus_~a#1, minus_~b#1; [2025-02-08 14:08:57,423 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L69-9: #t~ret22#1 := minus_#res#1; [2025-02-08 14:08:57,423 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L65-3: #t~ite21#1 := #t~ret20#1; [2025-02-08 14:08:57,423 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L65-4: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret20#1 && #t~ret20#1 <= 2147483647; [2025-02-08 14:08:57,423 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L65-5: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:08:57,423 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L65-6: havoc minus_#t~short103#1, minus_#t~short104#1, minus_~a#1, minus_~b#1; [2025-02-08 14:08:57,423 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L65-7: #t~ret20#1 := minus_#res#1; [2025-02-08 14:08:57,577 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L92-3: #t~ite45#1 := #t~ret44#1; [2025-02-08 14:08:57,577 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L92-4: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret44#1 && #t~ret44#1 <= 2147483647; [2025-02-08 14:08:57,577 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L92-5: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:08:57,578 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L92-6: havoc minus_#t~short103#1, minus_#t~short104#1, minus_~a#1, minus_~b#1; [2025-02-08 14:08:57,578 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L92-7: #t~ret44#1 := minus_#res#1; [2025-02-08 14:08:57,578 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L96-5: #t~ite47#1 := #t~ret46#1; [2025-02-08 14:08:57,578 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L96-6: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret46#1 && #t~ret46#1 <= 2147483647; [2025-02-08 14:08:57,578 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L96-7: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:08:57,578 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L96-8: havoc minus_#t~short103#1, minus_#t~short104#1, minus_~a#1, minus_~b#1; [2025-02-08 14:08:57,578 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L96-9: #t~ret46#1 := minus_#res#1; [2025-02-08 14:08:57,709 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L119-3: #t~ite69#1 := #t~ret68#1; [2025-02-08 14:08:57,709 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L119-4: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret68#1 && #t~ret68#1 <= 2147483647; [2025-02-08 14:08:57,709 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L119-5: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:08:57,709 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L119-6: havoc minus_#t~short103#1, minus_#t~short104#1, minus_~a#1, minus_~b#1; [2025-02-08 14:08:57,709 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L119-7: #t~ret68#1 := minus_#res#1; [2025-02-08 14:08:57,709 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L123-5: #t~ite71#1 := #t~ret70#1; [2025-02-08 14:08:57,709 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L123-6: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret70#1 && #t~ret70#1 <= 2147483647; [2025-02-08 14:08:57,709 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L123-7: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:08:57,709 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L123-8: havoc minus_#t~short103#1, minus_#t~short104#1, minus_~a#1, minus_~b#1; [2025-02-08 14:08:57,710 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L123-9: #t~ret70#1 := minus_#res#1; [2025-02-08 14:08:57,868 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:08:57,868 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:08:58,275 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:08:58,275 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:08:58,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:08:58 BoogieIcfgContainer [2025-02-08 14:08:58,275 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:08:58,277 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:08:58,277 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:08:58,281 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:08:58,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:08:56" (1/3) ... [2025-02-08 14:08:58,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bfec4f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:08:58, skipping insertion in model container [2025-02-08 14:08:58,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:56" (2/3) ... [2025-02-08 14:08:58,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bfec4f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:08:58, skipping insertion in model container [2025-02-08 14:08:58,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:08:58" (3/3) ... [2025-02-08 14:08:58,284 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-trans.wvr.c [2025-02-08 14:08:58,298 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:08:58,299 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-nzb-file-trans.wvr.c that has 4 procedures, 210 locations, 1 initial locations, 6 loop locations, and 60 error locations. [2025-02-08 14:08:58,299 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:08:58,421 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-08 14:08:58,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 219 places, 242 transitions, 505 flow [2025-02-08 14:08:58,573 INFO L124 PetriNetUnfolderBase]: 33/239 cut-off events. [2025-02-08 14:08:58,575 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 14:08:58,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 239 events. 33/239 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1396 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 219. Up to 2 conditions per place. [2025-02-08 14:08:58,588 INFO L82 GeneralOperation]: Start removeDead. Operand has 219 places, 242 transitions, 505 flow [2025-02-08 14:08:58,598 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 214 places, 237 transitions, 489 flow [2025-02-08 14:08:58,607 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:08:58,627 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6f8a1953, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:08:58,627 INFO L334 AbstractCegarLoop]: Starting to check reachability of 117 error locations. [2025-02-08 14:08:58,635 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:08:58,635 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-08 14:08:58,635 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:08:58,635 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:58,636 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 14:08:58,636 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 114 more)] === [2025-02-08 14:08:58,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:58,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1968367, now seen corresponding path program 1 times [2025-02-08 14:08:58,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:58,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6359054] [2025-02-08 14:08:58,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:58,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:58,745 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:08:58,786 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:08:58,787 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:58,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:58,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:58,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:58,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6359054] [2025-02-08 14:08:58,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6359054] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:58,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:58,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:08:58,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277500807] [2025-02-08 14:08:58,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:58,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:58,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:58,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:58,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:58,983 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 242 [2025-02-08 14:08:58,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 237 transitions, 489 flow. Second operand has 4 states, 4 states have (on average 120.75) internal successors, (483), 4 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:58,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:58,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 242 [2025-02-08 14:08:58,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:10,632 INFO L124 PetriNetUnfolderBase]: 120503/219819 cut-off events. [2025-02-08 14:09:10,632 INFO L125 PetriNetUnfolderBase]: For 2477/2477 co-relation queries the response was YES. [2025-02-08 14:09:11,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378016 conditions, 219819 events. 120503/219819 cut-off events. For 2477/2477 co-relation queries the response was YES. Maximal size of possible extension queue 10233. Compared 2578596 event pairs, 83066 based on Foata normal form. 3/176876 useless extension candidates. Maximal degree in co-relation 372076. Up to 156243 conditions per place. [2025-02-08 14:09:12,095 INFO L140 encePairwiseOnDemand]: 223/242 looper letters, 116 selfloop transitions, 10 changer transitions 0/243 dead transitions. [2025-02-08 14:09:12,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 243 transitions, 753 flow [2025-02-08 14:09:12,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:12,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:12,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 615 transitions. [2025-02-08 14:09:12,110 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6353305785123967 [2025-02-08 14:09:12,112 INFO L175 Difference]: Start difference. First operand has 214 places, 237 transitions, 489 flow. Second operand 4 states and 615 transitions. [2025-02-08 14:09:12,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 243 transitions, 753 flow [2025-02-08 14:09:12,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 243 transitions, 744 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 14:09:12,165 INFO L231 Difference]: Finished difference. Result has 215 places, 243 transitions, 562 flow [2025-02-08 14:09:12,167 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=562, PETRI_PLACES=215, PETRI_TRANSITIONS=243} [2025-02-08 14:09:12,172 INFO L279 CegarLoopForPetriNet]: 214 programPoint places, 1 predicate places. [2025-02-08 14:09:12,173 INFO L471 AbstractCegarLoop]: Abstraction has has 215 places, 243 transitions, 562 flow [2025-02-08 14:09:12,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 120.75) internal successors, (483), 4 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:12,173 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:12,174 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-08 14:09:12,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:09:12,175 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 114 more)] === [2025-02-08 14:09:12,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:12,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1488059151, now seen corresponding path program 1 times [2025-02-08 14:09:12,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:12,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707405654] [2025-02-08 14:09:12,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:12,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:12,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:09:12,213 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:09:12,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:12,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:12,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:12,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:12,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707405654] [2025-02-08 14:09:12,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707405654] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:09:12,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629050669] [2025-02-08 14:09:12,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:12,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:09:12,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:09:12,353 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:09:12,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 14:09:12,447 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:09:12,463 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:09:12,463 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:12,463 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:12,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:09:12,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:09:12,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:12,527 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:09:12,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629050669] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:12,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:09:12,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-08 14:09:12,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263804196] [2025-02-08 14:09:12,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:12,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:09:12,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:12,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:09:12,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:09:12,555 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 242 [2025-02-08 14:09:12,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 243 transitions, 562 flow. Second operand has 6 states, 6 states have (on average 120.83333333333333) internal successors, (725), 6 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:12,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:12,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 242 [2025-02-08 14:09:12,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:24,055 INFO L124 PetriNetUnfolderBase]: 120503/219816 cut-off events. [2025-02-08 14:09:24,055 INFO L125 PetriNetUnfolderBase]: For 615/615 co-relation queries the response was YES. [2025-02-08 14:09:24,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377370 conditions, 219816 events. 120503/219816 cut-off events. For 615/615 co-relation queries the response was YES. Maximal size of possible extension queue 10239. Compared 2579360 event pairs, 83066 based on Foata normal form. 3/176878 useless extension candidates. Maximal degree in co-relation 377297. Up to 156228 conditions per place. [2025-02-08 14:09:25,609 INFO L140 encePairwiseOnDemand]: 229/242 looper letters, 106 selfloop transitions, 17 changer transitions 0/240 dead transitions. [2025-02-08 14:09:25,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 240 transitions, 796 flow [2025-02-08 14:09:25,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:09:25,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:09:25,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 846 transitions. [2025-02-08 14:09:25,612 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5826446280991735 [2025-02-08 14:09:25,612 INFO L175 Difference]: Start difference. First operand has 215 places, 243 transitions, 562 flow. Second operand 6 states and 846 transitions. [2025-02-08 14:09:25,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 240 transitions, 796 flow [2025-02-08 14:09:25,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 240 transitions, 796 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:09:25,616 INFO L231 Difference]: Finished difference. Result has 217 places, 240 transitions, 584 flow [2025-02-08 14:09:25,617 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=584, PETRI_PLACES=217, PETRI_TRANSITIONS=240} [2025-02-08 14:09:25,617 INFO L279 CegarLoopForPetriNet]: 214 programPoint places, 3 predicate places. [2025-02-08 14:09:25,617 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 240 transitions, 584 flow [2025-02-08 14:09:25,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.83333333333333) internal successors, (725), 6 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:25,618 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:25,618 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-08 14:09:25,627 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 14:09:25,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:09:25,822 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 114 more)] === [2025-02-08 14:09:25,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:25,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1114808453, now seen corresponding path program 1 times [2025-02-08 14:09:25,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:25,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104315786] [2025-02-08 14:09:25,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:25,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:25,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:09:25,865 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:09:25,868 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:25,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:26,041 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:26,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:26,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104315786] [2025-02-08 14:09:26,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104315786] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:09:26,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315209342] [2025-02-08 14:09:26,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:26,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:09:26,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:09:26,044 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:09:26,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 14:09:26,128 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:09:26,141 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:09:26,141 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:26,141 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:26,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:09:26,143 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:09:26,165 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:26,165 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:09:26,199 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:26,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315209342] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:09:26,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:09:26,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-02-08 14:09:26,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013466198] [2025-02-08 14:09:26,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:09:26,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 14:09:26,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:26,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 14:09:26,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-08 14:09:26,235 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 242 [2025-02-08 14:09:26,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 240 transitions, 584 flow. Second operand has 12 states, 12 states have (on average 121.08333333333333) internal successors, (1453), 12 states have internal predecessors, (1453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:26,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:26,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 242 [2025-02-08 14:09:26,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand